I purchased one for my new 5' alien build.
I hope I'm not risking too much ;-)

Me Too! :-)

Quote:

What is the exact name of the white JST connector? In case I have to crimp them.

Not sure what you mean here. Are you talking about the part number of the connector itself? It is a JST-SH connector (4-pin and 6-pin)

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What is the voltage on 3S and the 10V connector?

The 10v regulator attempts to do the best it can with a 3S battery source. It will typically maintain about 1.6v less than the input voltage. This means at a full charge, you will get 10v, but during flight when you can see voltage sags down to 10v on the input side, that regulator will be near 8.5v. As stated in the specs, I don't recommend using it with 3S batteries, but it should work. Most video TX can run down to about 7v.

Thought you were talking about bypassing the 10v regulator which would not be filtered. I don't know if it will work for you or not because a lot of noise is generated when the input voltage is that low. If you do have issues, I will take care of you.